I went to see Professor Johnson, only ______ that he had left the city the night before.

A. to learn B. learn

C. learned D. learning

A

【解析】l

試題分析：“only+to do”表示出人意料的結(jié)果。句意：我去看望Johnson教授，卻發(fā)現(xiàn)他在頭一天晚上已經(jīng)離開了這個城市。故選A。

考點(diǎn)：考查不定式用法

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